But it was not possible from the app store page itself. Have a look, how confusing it is:
https://mastodon.gamedev.place/@ndr/116483475865871622
It shows a lot of price points from 1€ all up to 45€ without saying if its a subscription or a one-time payment.
Maybe the author should include the pricing clearly somewhere else on the app store page as apple is not able to do so.
edit: spelling